Question about encryption

Question

Encryption

We are building a P2P data storage system.
The following question arose: let's say, today they arrest me and take the railway for examination. I am silent, I do not say anything, I do not give out any keys, etc. And then the experts report that in some unknown way, they found a certain key, when decrypting one of the files on my hard drive, they received something illegal (pirated content, porn, whatever).
At the same time, the file that they decrypted looks like something random (because this is a property of encryption algorithms). Is it possible in this case to say that I just stored the files generated by the random number generator (well, I have such a hobby), but the fact that they are decrypted into something with some key is an absolute accident, to which I have no not the slightest relationship?

Answer 1

In theory, yes, but any, even the most loyal court, is unlikely to believe in such an accident

Answer 2

It is quite possible if the key size is equal to the file size, and the encryption algorithm is XOR.

Answer 3

hire a good lawyer, he knows how to say

Answer 4

Type "convincing deniability" into Google.

Answer 5

You can also say that due to cosmic radiation, some areas of your disk were accidentally remagnetized, and a “pirate copy of Pirates of the Caribbean” formed on them. The probability is about the same.

Answer 6

Use proven algorithms - and the question will not be. Here such "in some unknown way, they found a certain key" - will not happen.
As for probability, the judicial system is guided by "common sense". Theoretically, any crime can be explained by chance (like my reprogrammed clone from the future framed me, which was captured on video, but it was not me). Or this way: the files on my computer were not created by me - I was hacked, my files were deleted, the disk was formatted and the new files were copied.

Answer 7

IMHO, in order not to bother with this problem, it's enough just not to store anything illegal on the servers (your CO). But there are nuances here, I myself understand that not all IT laws are sufficiently developed in our country, and a law-abiding company may have a reason to hide some information from the security authorities.
However, I would like to draw an analogy with the human body: the liver asks other internal organs for advice on how to hide the presence of a virus from leukocytes and pass it off, say, as toxication (Friday, after all).

Answer 8

Just completely encrypt the partitions, if the key is complex, it will not be opened in any way and there will simply be nothing to show.

Answer 9

there was a case when the masks of the show took away the disks from my friends ... some of them were encrypted, they refused to give the key to the request, referring to the fact that the old system administrator knows the key, and he was fired 6 months ago ...
the old admin sent the tax, because he it doesn’t work there anymore ... in general, the nerves were frayed, they didn’t decrypt the information of the mask-show (but they could have done it with great desire), the disks were returned formatted, because the key was allegedly lost, anyway the information is not available. the case was closed, the mood was spoiled
for everyone, and another friend of the director had a “red” button that “exploded” the HDD on the server